Proteins
- Created by: lucy
- Created on: 29-12-12 23:34
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- Proteins
- Length of amino acid chains
- 2 amino acids join = Dipeptide
- more than two amino acids = polypeptide
- one or more polypeptide chain = PROTEIN
- Primary Structure
- The sequence type and number of amino acids held together by peptide bonds
- Secondary Structure
- Hydrogen bonds form between amino acids in the chains
- Either coiling into an alpha helix or folding into a beta pleated sheet
- Hydrogen bonds form between amino acids in the chains
- Tertiary Structure
- Folded and coiled further due to ionic bonds(+-) disulphide bridges, philic & phobic interactions, hydrogen B.
- Quaternary Structure
- Determined by the tertiary structure of individual polypeptide chains bonded together
- Length of amino acid chains
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